Cita APA (7a ed.)

Rollins, J. (2014). 6th extinction: A Sigma Force novel. William Morrow.

Cita Chicago Style (17a ed.)

Rollins, James. 6th Extinction: A Sigma Force Novel. New York: William Morrow, 2014.

Cita MLA (8a ed.)

Rollins, James. 6th Extinction: A Sigma Force Novel. William Morrow, 2014.

Precaución: Estas citas no son 100% exactas.